27981207

素因数分解:

$3^6\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:442

約数の個数: 28

約数和(自身を含む): 42417144

約数和(自身を除く): 14435937

約数列:

[1, 3, 9, 27, 81, 131, 243, 293, 393, 729, 879, 1179, 2637, 3537, 7911, 10611, 23733, 31833, 38383, 71199, 95499, 115149, 213597, 345447, 1036341, 3109023, 9327069, 27981207]

約数ペア:

[(1, 27981207), (3, 9327069), (9, 3109023), (27, 1036341), (81, 345447), (131, 213597), (243, 115149), (293, 95499), (393, 71199), (729, 38383), (879, 31833), (1179, 23733), (2637, 10611), (3537, 7911)]